Oil Burner License Practice Questions and Answers 100% Pass

Oil Burner License Practice Questions and Answers 100% Pass What is the first thing a tech should do when arriving at a no combustion call? - Correct Answer ️️ -Ask how many times the customer reset the unit. What is the best long term solution for preventing a clogged nozzle? - Correct Answer ️️ --Remove any underground storage tanks. -Install a quality oil filter. -Cut the suction line 10" above the tank outlet to prevent sludge. Hot water and steam valves are interchangeable. - Correct Answer ️️ -False When in the presence of a flame, a cad cell normally reads.. - Correct Answer ️️ -300- 1000 ohms If a pump is used to bring oil to a level higher than the tank, an oil safety valve is required. - Correct Answer ️️ -True On a call where a hydronic heat system is putting out too much heat on the stack, the issue may be.. - Correct Answer ️️ --Too much draft. -Not enough combustion air in the equipment room. -Air leakage into chamber. A high CO2 reading is caused by.. - Correct Answer ️️ -Incomplete combustion An often overlooked cause of a high CO2 reading is.. - Correct Answer ️️ -Not enough combustion air in the equipment room. When multiple pumps are wired together in a heating system, they should be wired in.. - Correct Answer ️️ -parallel In a series circuit.. - Correct Answer ️️ -Current has one path. When 2 burners are connected to the same chimney.. - Correct Answer ️️ -Sufficient draft must be obtained to operate both units. The ignition transformer is located.. - Correct Answer ️️ -In the primary control. When safeties are wired in series one safety will affect the operation of the others. - Correct Answer ️️ -True A stack switch is no longer allowed to be installed or replaced because.. - Correct Answer ️️ -It's safety cutout time is higher than what is now required. What is a power venter and what does it do? - Correct Answer ️️ -An electrical device that sends fluid gases into the chimney connector. A burner in a confined space using 1 GPH of #2 fuel oil requires what size permanent opening for combustion air? - Correct Answer ️️ -140" The difference between an adjustable flame retention burner and a fixed flame retention burner is? - Correct Answer ️️ -Air inlets can be adjusted Ignitor position can be adjusted Fuel can be adjusted Oil tank design, construction, installation and testing shall be in accordance with.. - Correct Answer ️️ -527 CMR 9.0 Heat is a form of.. - Correct Answer ️️ -Energy If a burner is operational but the circulator pump isn't running.. - Correct Answer ️️ - The pump relay is not working correctly A method of dealing with low viscosity/cold temps with #2 oil? - Correct Answer ️️ - Increase pump pressure/ decrease nozzle size What is needed at the outlet of an oil tank? - Correct Answer ️️ -Thermal safety valve Where do you obtain an installation permit for oil burners? - Correct Answer ️️ -Fire Dept How many Btu's approximately in 1 gal of #2 fuel oil? - Correct Answer ️️ -140,000 btu's Solid state ignition is superior to spark because - Correct Answer ️️ -It is not affected by reduced voltage What is an installation? - Correct Answer ️️ -The complete setting in place, ready for operation, of an oil burner appliance together with its accessories and equipment. How far must a power vent terminate from an opening or window? - Correct Answer ️️ -4' A pump in a one pipe system that is full of air can be self purged. - Correct Answer ️️ - False List the minimum size of an oil supply line. - Correct Answer ️️ -3/8" A material with electrons so loose it allows voltage to pass with little or no resistance.. - Correct Answer ️️ -Is a conductor If a high limit goes off, what does a low water switch do? - Correct Answer ️️ - Maintains water temperature What is flashpoint an indicator of? - Correct Answer ️️ -Minimum temperature oil will ignite but not continue to burn. What travels on the inside of the wire? - Correct Answer ️️ -Volts What does readily accessible mean pertaining to oil burning equipment? - Correct Answer ️️ -Capable of being reached easily and quickly for operation, maintenance or inspection. What is the minimum vent pipe on an oil tank? - Correct Answer ️️ -1 1/4" What causes corrosion on a flue pipe? - Correct Answer ️️ -When the flue pipe is operating below the dew point temperature. What are the methods to prevent oil waxing? - Correct Answer ️️ -Put additives